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Kisachek [45]
1 year ago
9

For something to combust, it must have ____________.

Chemistry
2 answers:
Wewaii [24]1 year ago
8 0
The answer would be B
docker41 [41]1 year ago
6 0

╰┈➤\: \huge\color{pink}{\bold{Answer}}

For something to combust, it must have <em>Oxygen</em><em> </em>

  • A. Carbon dioxide
  • <u>B. Oxygen</u>
  • C. Water
  • D. Nitrogen

\:  \:  \:

╰┈➤\: \huge\color{pink}{\bold{Explanation}}

  • We don't have to keep lighting a campfire, it just keep burning

  • To summarize, for combustion to occur three things must be present: a fuel to be burned, a source of oxygen, and a source of heat

\:  \:  \:

So choose letter B

\color{pink}──────────────────────────────

\mathfrak \red{ -  \: Cherrrry \: Red}

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Answer:

The answer to your question is given after the questions so I just explain how to get it.

Explanation:

a)

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          x = 0.045 / 98

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b)

Molarity = \frac{moles}{volume}

Molarity = \frac{0.00046}{0.35}

Molarity = 0.0013 or 1.31 x 10⁻³

c)

Formula            C₁V₁ = C₂V₂

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Substitution

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Simplification and result

                              V₁ = 0.0013 / 0.1

                              V₁ = 0.13 l = 130 ml            

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